Leptachatina antiqua, Pease, 1870

Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 253-254

antiqua Pease, 1870 , Helicteres

( Fig. 3A )

[ Helicteres ] (Leptachatina) antiqua Pease, 1870: 94 .

Achatinella (Leptachatina) antiqua – Crosse 1876: 97, 98, pl. 3, fig. 6.

CURRENT TAXONOMIC STATUS. — Leptachatininae Cockerell, 1913; Leptachatina Gould, 1847 (Leptachatina) . Valid species.

TYPE MATERIAL. — Lectotype (here designated) MNHN IM-2000- 30817.

TYPE LOCALITY. — “l’île de Kauai (îles Hawaii)” (from article title).

REMARKS

This species was described by Pease as a species of “ Hélictères ” (i.e. genus Helicteres , though the formal genus name was not used and it is therefore placed in square brackets above) in the subgenus Leptachatina (see introductory text regarding species of Pease). The original description was not explicitly based on only a single specimen but neither does it imply the existence of syntypes. Crosse (1876: pl. 3, fig. 6) illustrated a single specimen, presumably one of the two “exemplaires typiques” [typical examples] in the collection of the Journal de Conchyliologie ( Crosse 1876: 98). Fischer-Piette (1950: 149) listed the specimen illustrated by Crosse as an “Exemplaire figuré”, also not treating it explicitly as a type. Johnson (1994: 26) referenced Fischer-Piette’s statement but credited him with having listed the “ Holotype ”; he did not mention additional type specimens. Johnson’s treatment did not constitute a lectotype fixation (see introductory text regarding lectotypes). Despite Crosse’s statement that there were two specimens in the collection, there is now only one specimen in this lot. The labels associated with this specimen indicate that it is the specimen illustrated by Crosse (1876: pl. 3, fig. 6) and that it was received from Pease in 1869; and although the figures are not detailed and the shell is rather featureless and broken into two fragments, it is nonetheless here designated as the lectotype.

Figures

FIG. 3. — Amastridae Pilsbry, 1910: A, Helicteres antiqua Pease, 1870, lectotype MNHN IM-2000-30817, not measured; B, Helicteres balteata Pease, 1870, lectotype MNHN IM-2000-30818, 11.8 mm; C, Helicter brevicula Pease, 1869, lectotype MNHN IM-2000-30819, 7.7 mm; D, Helicteres costulosa Pease, 1870, lectotype MNHN IM-2000-30821, 14.0 mm; E, Helicter cylindrata Pease, 1869, lectotype MNHN IM-2000-30822, 8.2 mm; F, Helicter erecta Pease, 1869, lectotype MNHN IM-2000-30824, 14.6 mm; G, Helix gravida Férussac,1825, lectotype MNHN IM-2000-30825, 22.5 mm, fig. 4 of Férussac in Quoy & Gaimard (1825); H, Achatinella helvina Baldwin, 1895, possible syntype MNHN IM-2000-30133, 15.8 mm, fig. 30 of Baldwin (1895). Scale bars: A-F, 1 mm; G, 10 mm; H, 5 mm. Dimensions given are shell height; reproductions of original illustrations not to scale.